<template>
  <div class="ratingselect">
    <div class="rating-type border-1px">
      <!--全部-->
      <span class="block positive" :class="{'active':selectType===2}" @click="select(2,$event)">{{desc.all}}
        <span class="count">{{ratings.length}}</span>
      </span>
      <!--推荐-->
      <span class="block positive" :class="{'active':selectType===0}" @click="select(0,$event)">{{desc.positive}}
        <span class="count">{{positiveCount.length}}</span>
      </span>
      <!--吐槽-->
      <span class="block negative" :class="{'active':selectType===1}" @click="select(1,$event)">{{desc.negative}}
        <span class="count">{{negativeCount.length}}</span>
      </span>
    </div>
    <!--只看有内容的评价-->
    <div class="switch" :class="{'on':onlyContent}" @click="toggleContent($event)">
      <span class="icon-check_circle"></span>
      <span class="text">只看有内容的评价</span>
    </div>
  </div>
</template>

<script type="text/ecmascript-6">
  const POSITIVE = 0;
  const NEGATIVE = 1;
  const ALL = 2;

  export default {
    props: {
      ratings: {
        type: Array,
        default() {
          return [];
        }
      },
      selectType: {
        type: Number,
        default: ALL
      },
      onlyContent: {
        type: Boolean,
        default: false
      },
      desc: {
        type: Object,
        default() {
          return {
            all: '全部',
            positive: '满意',
            negative: '不满意'
          };
        }
      }
    },
    computed: {
      positiveCount() {
        return this.ratings.filter((rating) => {
          return rating.rateType === POSITIVE;
        });
      },
      negativeCount() {
        return this.ratings.filter((rating) => {
          return rating.rateType === NEGATIVE;
        });
      }
    },
    methods: {
      select(type, event) {
        if (!event._constructed) return;
        // 发出一个事件通知上层组件改变ratingType
        this.$emit('ratingTypeChange', type);
      },
      toggleContent(event) {
        if (!event._constructed) return;
        // 发出一个事件通知上层组件改变onlyContent
        this.$emit('onlyContentToggle');
      }
    }
  };
</script>

<style lang="stylus" rel="stylesheet/stylus">
  @import "../../common/stylus/mixin.styl"
  .ratingselect
    .rating-type
      margin 0 18px
      padding 18px 0
      border-1px(rgba(7, 17, 27, 0.1))
      font-size 0
      .block
        display inline-block
        padding 8px 12px
        margin-right 8px
        line-height 12px
        border-radius 1px
        color rgb(77, 85, 93)
        font-size 12px
        &.active
          color #fff
        .count
          margin-left 2px
          font-size 8px
        &.positive
          background rgba(0, 160, 220, 0.2)
          &.active
            background rgb(0, 160, 220)
        &.negative
          background rgba(77, 85, 93, 0.2)
          &.active
            background rgb(77, 85, 93)
    .switch
      padding 6px 18px
      line-height 24px
      border-bottom 1px solid rgba(7, 17, 27, 0.1)
      color rgb(147, 153, 159)
      font-size 0
      &.on
        .icon-check_circle
          color #00c850
      .icon-check_circle
        display inline-block
        vertical-align top
        margin-right 4px
        font-size 24px
      .text
        display inline-block
        vertical-align top
        font-size 12px
</style>
